System environment check
TYPO3 is an enterprise content management system that is powerful, yet easy to install.
After some simple steps you'll be ready to add content to your website.
This first step checks your system environment and points out issues.
Detailed analysis
Some PHP functions disabled
disable_functions=exec passthru shell_exec system
These function(s) are disabled. TYPO3 uses some of those, so there might be trouble. TYPO3 is designed to use the default set of PHP functions plus some common extensions. Possibly these functions are disabled due to security considerations and most likely the list would include a function like exec() which is used by TYPO3 at various places. Depending on which exact functions are disabled, some parts of the system may just break without further notice.
Low PHP script execution time
max_execution_time=30
Your max_execution_time is low. While TYPO3 often runs without problems with 30 seconds, it may still happen that script execution is stopped before finishing calculations. You should monitor the system for messages in this area and maybe raise the limit to 240 seconds:
max_execution_time=240
PHP max_input_vars very low
max_input_vars=1000
This setting can lead to lost information if submitting forms with lots of data in TYPO3 CMS (as the install tool does). It is highly recommended to raise this to at least 1500:
max_input_vars=1500
CMS 8.7.8